
function go(){
	var t,tt;
	var _div=document.getElementsByClassName("show")[0];
	var obj=_div.getElementsByTagName('span')[0];
	obj.style.bottom="-150px";
	var change=function(){
		var obj_h=parseInt(obj.style.bottom);
		if(obj_h<0){obj.style.bottom=(obj_h+Math.floor((0-obj_h)*0.1))+"px"}//if
		else{clearInterval(t)}
	} 
	var back=function(){
		var obj_hh=parseInt(obj.style.bottom);
		if(obj_hh>-150){obj.style.bottom=(obj_hh+Math.floor((-150-obj_hh)*0.1))+"px"}
		else{clearInterval(tt)}
	}
 _div.onmouseover=function(){clearInterval(tt);t=setInterval(change,5);}
 _div.onmouseout=function(){clearInterval(t);tt=setInterval(back,5)}
}

function go1(){
	var t,tt;
	var _div=document.getElementsByClassName("show")[1];
	var obj=_div.getElementsByTagName('span')[0];
	obj.style.bottom="-150px";
	var change=function(){
		var obj_h=parseInt(obj.style.bottom);
		if(obj_h<0){obj.style.bottom=(obj_h+Math.floor((0-obj_h)*0.1))+"px"}//if
		else{clearInterval(t)}
	} 
	var back=function(){
		var obj_hh=parseInt(obj.style.bottom);
		if(obj_hh>-150){obj.style.bottom=(obj_hh+Math.floor((-150-obj_hh)*0.1))+"px"}
		else{clearInterval(tt)}
	}
 _div.onmouseover=function(){clearInterval(tt);t=setInterval(change,5);}
 _div.onmouseout=function(){clearInterval(t);tt=setInterval(back,5)}
}

function go2(){
	var t,tt;
	var _div=document.getElementsByClassName("show")[2];
	var obj=_div.getElementsByTagName('span')[0];
	obj.style.bottom="-150px";
	var change=function(){
		var obj_h=parseInt(obj.style.bottom);
		if(obj_h<0){obj.style.bottom=(obj_h+Math.floor((0-obj_h)*0.1))+"px"}//if
		else{clearInterval(t)}
	} 
	var back=function(){
		var obj_hh=parseInt(obj.style.bottom);
		if(obj_hh>-150){obj.style.bottom=(obj_hh+Math.floor((-150-obj_hh)*0.1))+"px"}
		else{clearInterval(tt)}
	}
 _div.onmouseover=function(){clearInterval(tt);t=setInterval(change,5);}
 _div.onmouseout=function(){clearInterval(t);tt=setInterval(back,5)}
}
window.onload=function(){
	go();
	go1();
	go2();
}